Stage 3 remap
For cars with major upgrades, such as a bigger or hybrid turbo. A Stage 3 calibration is written around the whole build, so we talk it through properly before anything is booked.
What a Stage 3 remap is
Stage 3 is where the hardware changes go beyond bolt-on parts. A bigger or hybrid turbo moves far more air than the engine was built for, and the fuelling, boost and timing all have to be written to match.
Because every Stage 3 car is different, there’s no off-the-shelf file. The calibration is written around the parts fitted to your car.
Parts a Stage 3 build usually has
- Turbo A larger or hybrid turbocharger.
- Fuelling Uprated injectors and, on some engines, a bigger fuel pump.
- Cooling and airflow An uprated intercooler, intake and a freer-flowing exhaust with the emissions equipment kept in place.
- Drivetrain A clutch, and sometimes gearbox work, rated for the extra torque.
Every build is different, so send us the full parts list and who fitted them. If the car needs something else first, we’ll tell you.
Talked through before it is booked
A Stage 3 job starts with a conversation, not a booking. We’ll go through the parts list, the condition of the car and what you want from it, and agree how the work will be done.
- A full health check and fault scan
- A look at every part fitted
- A check that the clutch and gearbox can take it
- Your car’s original software saved first
How a Stage 3 remap works
From first message to handover.
Send us the build
Message us on WhatsApp with the reg, the full parts list and what you want from the car.
We talk it through
We’ll go through the build with you and agree how the work will be done.
Health check
A fault scan and live data check before anything is changed.
Original file saved
Your car’s original software is read and kept safe.
Calibration written
The Stage 3 calibration is written around your build.
Checked with live data
We check the car on the road with live data before handing it back.
Compare the stages
Each stage builds on the one before it.
Questions people ask
Can’t see yours? Send it to us on WhatsApp.
Do I need Stage 2 first?
Not necessarily, but a Stage 3 build normally includes all the Stage 2 supporting parts as well as the bigger hardware.
Can you write a file for parts that are not fitted yet?
No. The calibration is written for what’s on the car, so the parts need to be fitted first.
Will my clutch cope?
Often the standard clutch will not hold Stage 3 torque. We check it as part of the assessment.
Do I need to tell my insurer?
Yes. A Stage 3 build is a significant modification, and both the parts and the remap should be declared.
Will it still pass an MOT?
It should, as long as the emissions equipment stays fitted and working. We never remove emissions parts on a road car.
Talk to us about a Stage 3 build
Send the reg and the full parts list on WhatsApp, and we’ll talk it through.